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Finding the Fourth Proportional to 221,797.90, 332,792.15 and 72,084.07

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Solution

The fourth proportional to 221,797.90, 332,792.15 and 72,084.07 is: 108,157.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,797.90 : 332,792.15 = 72,084.07 : x
  2. Step 2: Convert to fraction form
    221,797.90/332,792.15 = 72,084.07/x
  3. Step 3: Cross multiply
    221,797.90x = 332,792.15 × 72,084.07
  4. Step 4: Simplify right side
    221,797.90x = 23,989,011,152.30
  5. Step 5: Solve for x
    x = 23,989,011,152.30/221,797.90
  6. Step 6: Final answer
    x = 108,157.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.